13pc high speed steel titanium drill bit set. • Titanium nitride Coated drill bits. 13pcs good-quality High-speed steel titanium coated drill bits for longer life. 13x Drill bits. • Sizes: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm and 6.5mm.
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